AutoCodes – RAM – B146B RAM

B146B RAM Code - Channel 3 Audio Speaker Output Circuit Low

Quick Answer

The standard equipment speaker system includes four full-range speakers. Common causes include Faulty Audio Amplifier, Audio Amplifier harness is open or shorted, Audio Amplifier circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B146B RAM indicates Channel 3 Audio Speaker Output Circuit Low.
Common causes: Common causes include Faulty Audio Amplifier, Audio Amplifier harness is open or shorted, Audio Amplifier circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,121

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B146B RAM Description

The standard equipment speaker system includes four full-range speakers. The two front speakers are mounted behind a removable bezel located on each outboard end of the lower instrument panel. With the premium speaker system, the standard front speakers are replace with an enclosure assembly that includes a 4 inch speaker and a 1 inch tweeter. The four rear speakers are mounted behind a grille located on each outboard end of the sport bar, above the rear seating area of the vehicle. This Diagnostic Trouble Code (DTC) sets if a Direct Current (DC) offset occurs on the output channel, the amplifier shall set a DTC after a maturity rate of four to six seconds.

OBDII Code B146B RAM - Channel 3 Audio Speaker Output Circuit Low - AutoCodes.com — B146B RAM Code - Channel 3 Audio Speaker Output Circuit Low

What does this mean?

What are the Possible Causes of the DTC B146B RAM?

Faulty Audio Amplifier
Audio Amplifier harness is open or shorted
Audio Amplifier circuit poor electrical connection

How to Fix the DTC B146B RAM?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B146B RAM code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B146B RAM Code

1. What are the common symptoms of OBDII code B146B RAM?

- Common symptoms include low or no sound coming from the audio speakers in the vehicle, distorted sound quality, or complete audio system failure.

2. What could cause the OBDII code B146B RAM to trigger?

- The code B146B RAM, Channel 3 Audio Speaker Output Circuit Low, is typically triggered by issues such as a faulty audio amplifier, damaged speaker wiring, or a malfunctioning audio head unit.

3. How can I diagnose the B146B RAM code related to the Channel 3 Audio Speaker Output Circuit Low?

- To diagnose this code, you can start by checking the speaker wiring for any visible damage, testing the audio amplifier for proper functionality, and ensuring that the audio head unit is sending signals correctly.

4. Are there any repair tips for fixing the Channel 3 Audio Speaker Output Circuit Low issue?

- Repair tips include inspecting and repairing any damaged speaker wires, replacing a faulty audio amplifier, checking and resetting the audio head unit, and ensuring all connections are secure.

5. Can I reset the B146B RAM code related to the Channel 3 Audio Speaker Output Circuit Low myself?

- Yes, you can attempt to reset the code by using an OBDII scanner to clear the code after addressing the underlying issue causing the fault.

6. Is it safe to continue driving with the OBDII code B146B RAM active?

- It is generally safe to drive with the B146B RAM code, but it is recommended to address the issue promptly to restore the proper functioning of the audio system in the vehicle.

7. What is the typical cost to repair the Channel 3 Audio Speaker Output Circuit Low problem associated with code B146B RAM?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor costs, and diagnostic fees from a professional mechanic or audio technician.

8. Can weather conditions affect the Channel 3 Audio Speaker Output Circuit Low issue related to code B146B RAM?

- Extreme weather conditions, such as exposure to moisture or temperature fluctuations, can potentially impact the audio system components and contribute to the Channel 3 Audio Speaker Output Circuit Low problem.

9. How can I prevent the recurrence of the B146B RAM code in the future after repair?

- To prevent the code from reoccurring, it is essential to address the root cause of the issue thoroughly, perform regular maintenance checks on the audio system, and protect components from environmental factors that could cause damage.

10. Are there any recalls or technical service bulletins related to the B146B RAM code for Channel 3 Audio Speaker Output Circuit Low?

- It is recommended to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to the issue to ensure that you are informed of any relevant updates or solutions.